AutoCAD Lt 2013 Trial - Error messages and exceptions

I have just downloaded a trial version of AutoCAD Lt 2013. Upon initiation of the application, it freezes and shows error messages, thus:

Exception in acvmtools.crx ARX Command - Unhandled Exception C0000005 (Access violation reading 0x0144) at address 5CC1F5BFh

Error

Line: 109

Char: 3

Error: Expected identifier, string ornumbe

Code: 0

URL: https://ipm.autodesk.com/ipm/commom/scripts/treatment.2.3.j

I also am asked whether to continue scripts - yes or no.

If anyone knows how to resolve this irritation please come back.

Cheers.

Update your video driver.

I had the same problem with Autocad 2013 in my IBM Thinkpad Lenovo T61, 2Gb Ram and Windows 8.1, also diagnosed as a video card problem in other web pages.

I tried uninstalling/installing Autocad, cleaning register entries, updating drivers or even reverting to default Windows drivers with no success.

To my suprise, I've had success with these simple operations:

- Disabling all performance options or accelerations in dialog box "Autocad->Options->System->Performance parameters" and inner dialog boxes.

- Deleting (or renaming to .bak) file "%ProgramFiles%\Autodesk\AutoCAD 2013\AcVMTools.arx"

- Deleting (or renaming to .bak) file "%ProgramFiles%\Autodesk\AutoCAD 2013\AcVMTools.crx"

- Deleting (or renaming to .bak) file "%ProgramFiles%\Autodesk\AutoCAD 2013\es-ES\AcVMToolsRes.dll"

(Change "es-ES" in the last path to your corresponding language)

Now Autocad launches, open files and save them with no problem.

*** PLEASE NOTE!!! : ***

I *HAVE NOT* verified:

- If ALL these changes are necessary at once, or just one could do.

- If Autocad will fail in the future, or any of its features, as a consequence of these changes.